Camera optical lens

ABSTRACT

The present disclosure relates to the field of optical lenses and provides a camera optical lens. The camera optical lens includes, from an object side to an image side: a first lens; a second lens having a negative refractive power; a third lens having a negative refractive power; a fourth lens; a fifth lens; and a sixth lens. The camera optical lens satisfies following conditions: 1.10≤f1/f≤3.00; and −20.00≤R11/d11≤−11.00. The camera optical lens can achieve a high imaging performance while obtaining a low TTL.

TECHNICAL FIELD

The present disclosure relates to the field of optical lens, and moreparticularly, to a camera optical lens suitable for handheld terminaldevices, such as smart phones or digital cameras, and imaging devices,such as monitors or PC lenses.

BACKGROUND

With the emergence of smart phones in recent years, the demand forminiature camera lens is increasing day by day, but in general thephotosensitive devices of camera lens are nothing more than ChargeCoupled Device (CCD) or Complementary Metal-Oxide Semiconductor Sensor(CMOS sensor), and as the progress of the semiconductor manufacturingtechnology makes the pixel size of the photosensitive devices becomesmaller, plus the current development trend of electronic productstowards better functions and thinner and smaller dimensions, miniaturecamera lenses with good imaging quality therefore have become amainstream in the market. In order to obtain better imaging quality, thelens that is traditionally equipped in mobile phone cameras adopts athree-piece or four-piece lens structure. Also, with the development oftechnology and the increase of the diverse demands of users, and as thepixel area of photosensitive devices is becoming smaller and smaller andthe requirement of the system on the imaging quality is improvingconstantly, the five-piece, six-piece and seven-piece lens structuresgradually appear in lens designs. There is an urgent need forultra-thin, wide-angle camera lenses with good optical characteristicsand fully corrected chromatic aberration.

BRIEF DESCRIPTION OF DRAWINGS

Many aspects of the exemplary embodiment can be better understood withreference to the following drawings. The components in the drawings arenot necessarily drawn to scale, the emphasis instead being placed uponclearly illustrating the principles of the present disclosure. Moreover,in the drawings, like reference numerals designate corresponding partsthroughout the several views.

FIG. 1 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 1 of the present disclosure;

FIG. 2 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 1;

FIG. 3 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 1;

FIG. 4 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 1;

FIG. 5 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 2 of the present disclosure;

FIG. 6 is a schematic diagram of a longitudinal aberration of the cameraoptical lens shown in FIG. 5;

FIG. 7 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 5;

FIG. 8 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 5;

FIG. 9 is a schematic diagram of a structure of a camera optical lens inaccordance with Embodiment 3 of the present disclosure;

FIG. 10 is a schematic diagram of a longitudinal aberration of thecamera optical lens shown in FIG. 9;

FIG. 11 is a schematic diagram of a lateral color of the camera opticallens shown in FIG. 9; and

FIG. 12 is a schematic diagram of a field curvature and a distortion ofthe camera optical lens shown in FIG. 9.

DESCRIPTION OF EMBODIMENTS

The present disclosure will hereinafter be described in detail withreference to several exemplary embodiments. To make the technicalproblems to be solved, technical solutions and beneficial effects of thepresent disclosure more apparent, the present disclosure is described infurther detail together with the figure and the embodiments. It shouldbe understood the specific embodiments described hereby is only toexplain the disclosure, not intended to limit the disclosure.

Embodiment 1

Referring to FIG. 1, the present disclosure provides a camera opticallens 10. FIG. 1 shows the camera optical lens 10 according to Embodiment1 of the present disclosure. The camera optical lens 10 includes 6lenses. Specifically, the camera optical lens 10 includes, from anobject side to an image side, an aperture S1, a first lens L1, a secondlens L2, a third lens L3, a fourth lens L4, a fifth lens L5, and a sixthlens L6. An optical element such as an optical filter GF can be arrangedbetween the sixth lens L6 and an image plane Si.

The first lens L1, the second lens L2, the third lens L3, the fourthlens L4, the fifth lens L5 and the sixth lens L6 are all made of aplastic material.

The second lens L2 has a negative refractive power, and the third lensL3 has a negative refractive power.

Here, a focal length of the camera optical lens 10 is defined as f, anda focal length of the first lens L1 is defined as f1. The camera opticallens 10 should satisfy a condition of 1.10≤f1/f≤3.00, which specifies aratio of the focal length f1 of the first lens L1 and the focal length fof the camera optical lens 10. If the lower limit of the specified valueis exceeded, although it would facilitate development of ultra-thinlenses, the positive refractive power of the first lens L1 will be toostrong, and thus it is difficult to correct the problem like anaberration and it is also unfavorable for development of wide-anglelenses. On the contrary, if the upper limit of the specified value isexceeded, the positive refractive power of the first lens L1 wouldbecome too weak, and it is then difficult to develop ultra-thin lenses.Preferably, 1.10≤f1/f≤2.73.

A curvature radius of an object side surface of the sixth lens L6 isdefined as R11, and an on-axis thickness of the sixth lens L6 is definedas d11. The camera optical lens 10 further satisfies a condition of−20.00≤R11/d11≤−11.00, which specifies a shape of the sixth lens L6. Outof this range, a development towards ultra-thin and wide-angle lenseswould make it difficult to correct the problem of the aberration.Preferably, −20≤R11/d11≤−11.50.

A total optical length from an object side surface of the first lens L1to an image plane of the camera optical lens 10 along an optic axis isdefined as TTL. When the focal length of the camera optical lens, thefocal length of the first lens, the curvature radius of the object sidesurface of the sixth lens and the on-axis thickness of the sixth lenssatisfy the above conditions, the camera optical lens will have theadvantage of high performance and satisfy the design requirement of alow TTL.

In this embodiment, the object side surface of the first lens L1 isconvex in a paraxial region, an image side surface of the first lens L1is concave in the paraxial region, and the first lens L2 has a positiverefractive power.

A curvature radius of the object side surface of the first lens L1 isdefined as R1, and a curvature radius of the image side surface of thefirst lens L1 is defined as R2. The camera optical lens 10 furthersatisfies a condition of −10.46≤(R1+R2)/(R1−R2)≤−1.53. This canreasonably control a shape of the first lens L1 in such a manner thatthe first lens L1 can effectively correct a spherical aberration of thecamera optical lens. Preferably, −6.54≤(R1+R2)/(R1−R2)≤−1.91.

An on-axis thickness of the first lens L1 is defined as d1. The cameraoptical lens 10 further satisfies a condition of 0.06≤d1/TTL≤0.20. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.10≤d1/TTL≤0.16.

In this embodiment, an object side surface of the second lens L2 isconvex in the paraxial region, and an object side surface of the secondlens L2 is concave in the paraxial region.

A focal length of the second lens L2 is f2. The camera optical lens 10further satisfies a condition of −2.42E+07≤f2/f≤−5.24. By controllingthe negative refractive power of the second lens L2 within thereasonable range, correction of the aberration of the optical system canbe facilitated. Preferably, −1.51E+07≤f2/f≤−6.55.

A curvature radius of the object side surface of the second lens L2 isdefined as R3, and a curvature radius of the image side surface of thesecond lens L2 is defined as R4. The camera optical lens 10 furthersatisfies a condition of 5.81≤(R3+R4)/(R3−R4)≤73.42. This can reasonablycontrol a shape of the second lens L2. Out of this range, a developmenttowards ultra-thin and wide-angle lenses would make it difficult tocorrect the problem of the aberration. Preferably,9.29≤(R3+R4)/(R3−R4)≤58.73.

An on-axis thickness of the second lens L2 is defined as d3. The cameraoptical lens 10 further satisfies a condition of 0.03≤d3/TTL≤0.09. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.04≤d3/TTL≤0.07.

In this embodiment, an object side surface of the third lens L3 isconvex in the paraxial region, and an image side surface of the thirdlens L3 is concave in the paraxial region.

A focal length of the third lens L3 is f3. The camera optical lens 10further satisfies a condition of −1.49E+07≤f3/f≤−2.80E+05. When thecondition is satisfied, the field curvature of the system can bebalanced for further improving the image quality. Preferably,−9.31E+06≤f3/f≤−3.50E+05.

A curvature radius of the object side surface of the third lens L3 isdefined as R5, and a curvature radius of the image side surface of thethird lens L3 is defined as R6. The camera optical lens 10 furthersatisfies a condition of 73.39≤(R5+R6)/(R5−R6)≤956.06. This caneffectively control a shape of the third lens L3, thereby facilitatingshaping of the third lens L3 and avoiding bad shaping and generation ofstress due to the overly large surface curvature of the third lens L3.Preferably, 117.42≤(R5+R6)/(R5−R6)≤764.85.

An on-axis thickness of the third lens L3 is defined as d5. The cameraoptical lens 10 further satisfies a condition of 0.04≤d5/TTL≤0.12. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.06≤d5/TTL≤0.10.

In this embodiment, an object side surface of the fourth lens L4 isconvex in the paraxial region, and an image side surface of the fourthlens L4 is concave in the paraxial region.

A focal length of the fourth lens L4 is f4. The camera optical lens 10further satisfies a condition of −14.88≤f4/f≤11.93. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, −9.30≤f4/f≤9.54.

A curvature radius of the object side surface of the fourth lens L4 isdefined as R7, and a curvature radius of the image side surface of thefourth lens L4 is defined as R8. The camera optical lens 10 furthersatisfies a condition of −7.77≤(R7+R8)/(R7−R8)≤3.49, which specifies ashape of the fourth lens L4. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,−4.86≤(R7+R8)/(R7−R8)≤2.79.

An on-axis thickness of the fourth lens L4 is defined as d7. The cameraoptical lens 10 further satisfies a condition of 0.03≤d7/TTL≤0.09. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.04≤d7/TTL≤0.07.

In this embodiment, an object side surface of the fifth lens L5 isconvex in the paraxial region, an image side surface of the fifth lensL5 is convex in the paraxial region, and the fifth lens L5 has apositive refractive power.

A focal length of the fifth lens L5 is f5. The camera optical lens 10further satisfies a condition of 0.39≤f5/f≤1.22. This can effectivelymake a light angle of the camera lens gentle and reduce the tolerancesensitivity. Preferably, 0.62≤f5/f≤0.98.

A curvature radius of the object side surface of the fifth lens L5 isdefined as R9, and a curvature radius of the image side surface of thefifth lens L5 is defined as R10. The camera optical lens 10 furthersatisfies a condition of 0.39≤(R9+R10)/(R9−R10)≤1.17, which specifies ashape of the fifth lens L5. Out of this range, a development towardsultra-thin and wide-angle lenses would make it difficult to correct theproblem like an off-axis aberration. Preferably,0.62≤(R9+R10)/(R9−R10)≤0.94.

An on-axis thickness of the fifth lens L5 is defined as d9. The cameraoptical lens 10 further satisfies a condition of 0.05≤d9/TTL≤0.18. Thisfacilitates achieving ultra-thin lenses. Preferably, 0.09≤d9/TTL≤0.14.

In this embodiment, an object side surface of the sixth lens L6 isconcave in the paraxial region, an image side surface of the sixth lensL6 is concave in the paraxial region, and the sixth lens L6 has anegative refractive power.

A focal length of the sixth lens L6 is f6. The camera optical lens 10further satisfies a condition of −1.57≤f6/f≤−0.43. The appropriatedistribution of the refractive power leads to a better imaging qualityand a lower sensitivity. Preferably, −0.98≤f6/f≤−0.53.

A curvature radius of the image side surface of the sixth lens L6 isdefined as R12. The camera optical lens 10 further satisfies a conditionof 0.34≤(R11+R12)/(R11−R12)≤1.15, which specifies a shape of the sixthlens L6. Out of this range, a development towards ultra-thin andwide-angle lenses would make it difficult to correct the problem like anoff-axis aberration. Preferably, 0.55≤(R11+R12)/(R11−R12)≤0.92.

The camera optical lens 10 further satisfies a condition of0.05≤d11/TTL≤0.22. This facilitates achieving ultra-thin lenses.Preferably, 0.08≤d11/TTL≤0.18.

In this embodiment, a combined focal length of the first lens L1 and thesecond lens L2 is f12. The camera optical lens 10 further satisfies acondition of 0.60≤f12/f≤3.54. This can eliminate the aberration anddistortion of the camera optical lens while suppressing a back focallength of the camera optical lens, thereby maintaining miniaturizationof the camera lens system. Preferably, 0.96≤f12/f≤2.83.

In this embodiment, the total optical length TTL of the camera opticallens 10 is smaller than or equal to 5.00 mm, which is beneficial forachieving ultra-thin lenses. Preferably, the total optical length TTL ofthe camera optical lens 10 is smaller than or equal to 4.77 mm.

In this embodiment, the camera optical lens 10 has a large F number,which is smaller than or equal to 1.98. The camera optical lens 10 has abetter imaging performance. Preferably, the F number of the cameraoptical lens 10 is smaller than or equal to 1.94.

With such design, the total optical length TTL of the camera opticallens 10 can be made as short as possible, and thus the miniaturizationcharacteristics can be maintained.

In the following, examples will be used to describe the camera opticallens 10 of the present disclosure. The symbols recorded in each examplewill be described as follows. The focal length, on-axis distance,curvature radius, on-axis thickness, inflexion point position, andarrest point position are all in units of mm.

TTL: Optical length (the total optical length from the object sidesurface of the first lens to the image plane of the camera optical lensalong the optic axis) in mm.

Preferably, inflexion points and/or arrest points can be arranged on theobject side surface and/or image side surface of the lens, so as tosatisfy the demand for the high quality imaging. The description belowcan be referred to for specific implementations.

The design information of the camera optical lens 10 in Embodiment 1 ofthe present disclosure is shown in Tables 1 and 2.

TABLE 1 R d nd vd S1 ∞ d0 = −0.362 R1 1.475 d1 = 0.601 nd1 1.5462 v155.95 R2 3.666 d2 = 0.070 R3 3.048 d3 = 0.235 nd2 1.6682 v2 20.40 R42.570 d4 = 0.343 R5 41.580 d5 = 0.366 nd3 1.5462 v3 55.95 R6 41.450 d6 =0.115 R7 35.831 d7 = 0.281 nd4 1.6682 v4 20.40 R8 11.505 d8 = 0.241 R914.255 d9 = 0.494 nd5 1.5462 v5 55.95 R10 −1.750 d10 =  0.317 R11−10.610 d11 =  0.531 nd6 1.5142 v6 56.26 R12 1.408 d12 =  0.350 R13 ∞d13 =  0.210 ndg 1.5168 vg 64.17 R14 ∞ d14 =  0.357

In the table, meanings of various symbols will be described as follows.

S1: aperture;

R: curvature radius of an optical surface, a central curvature radiusfor a lens;

R1: curvature radius of the object side surface of the first lens L1;

R2: curvature radius of the image side surface of the first lens L1;

R3: curvature radius of the object side surface of the second lens L2;

R4: curvature radius of the image side surface of the second lens L2;

R5: curvature radius of the object side surface of the third lens L3;

R6: curvature radius of the image side surface of the third lens L3;

R7: curvature radius of the object side surface of the fourth lens L4;

R8: curvature radius of the image side surface of the fourth lens L4;

R9: curvature radius of the object side surface of the fifth lens L5;

R10: curvature radius of the image side surface of the fifth lens L5;

R11: curvature radius of the object side surface of the sixth lens L6;

R12: curvature radius of the image side surface of the sixth lens L6;

R13: curvature radius of an object side surface of the optical filterGF;

R14: curvature radius of an image side surface of the optical filter GF;

d: on-axis thickness of a lens and an on-axis distance between lenses;

d0: on-axis distance from the aperture S1 to the object side surface ofthe first lens L1;

d1: on-axis thickness of the first lens L1;

d2: on-axis distance from the image side surface of the first lens L1 tothe object side surface of the second lens L2;

d3: on-axis thickness of the second lens L2;

d4: on-axis distance from the image side surface of the second lens L2to the object side surface of the third lens L3;

d5: on-axis thickness of the third lens L3;

d6: on-axis distance from the image side surface of the third lens L3 tothe object side surface of the fourth lens L4;

d7: on-axis thickness of the fourth lens L4;

d8: on-axis distance from the image side surface of the fourth lens L4to the object side surface of the fifth lens L5;

d9: on-axis thickness of the fifth lens L5;

d10: on-axis distance from the image side surface of the fifth lens L5to the object side surface of the sixth lens L6;

d11: on-axis thickness of the sixth lens L6;

d12: on-axis distance from the image side surface of the sixth lens L6to the object side surface of the optical filter GF;

d13: on-axis thickness of the optical filter GF;

d14: on-axis distance from the image side surface of the optical filterGF to the image plane;

nd: refractive index of d line;

nd1: refractive index of d line of the first lens L1;

nd2: refractive index of d line of the second lens L2;

nd3: refractive index of d line of the third lens L3;

nd4: refractive index of d line of the fourth lens L4;

nd5: refractive index of d line of the fifth lens L5;

nd6: refractive index of d line of the sixth lens L6;

ndg: refractive index of d line of the optical filter GF;

vd: abbe number;

v1: abbe number of the first lens L1;

v2: abbe number of the second lens L2;

v3: abbe number of the third lens L3;

v4: abbe number of the fourth lens L4;

v5: abbe number of the fifth lens L5;

v6: abbe number of the sixth lens L6;

vg: abbe number of the optical filter GF.

Table 2 shows aspherical surface data of the camera optical lens 10 inEmbodiment 1 of the present disclosure.

TABLE 2 Conic Aspherical surface coefficients coefficient k A4 A6 A8 R11.6429E−02 −0.008830139 0.046684942 −0.139909775 R2 −1.3486E+01−0.229318918 0.4282705 −0.476994711 R3 −5.5691E+00 −0.3342744850.574573739 −0.42535143 R4 1.3246E−01 −0.182778529 0.450690293−0.782030125 R5 −2.4639E+03 −0.131930758 −0.056599412 0.284066831 R6−5.1101E+03 −0.257289546 −0.216693724 1.203267856 R7 −1.8605E+03−0.430600618 0.130995575 0.159009242 R8 3.8947E+01 −0.3233453930.031621538 0.343495315 R9 9.0261E+01 −0.01587487 −0.153985688−0.059134765 R10 −6.5119E+00 −0.018808168 −0.022387914 −0.096095537 R112.0892E+01 −0.306554457 0.135063007 0.003472994 R12 −5.8842E+00−0.182665585 0.118070238 −0.050585734 Aspherical surface coefficientsA10 A12 A14 A16 R1 0.275647766 −0.332531097 0.220241873 −0.064842955 R20.329758619 −0.146290344 0.051533331 −0.021522292 R3 0.0340232590.196207521 −0.087443985 −0.012545931 R4 1.547107532 −2.1937873251.786698909 −0.564384916 R5 −0.958004217 1.481669939 −1.2109018520.425875438 R6 −2.451029573 2.440640555 −1.190735865 0.20989824 R70.533324412 −1.902256565 1.87251247 −0.634788538 R8 −0.4082063480.184535426 −0.029211201 0.001697974 R9 0.333606133 −0.3320628580.140159831 −0.021607415 R10 0.149722373 −0.077197675 0.017417361−0.00147034 R11 −0.015140928 4.15E−03 −4.73E−04 2.02E−05 R12 0.01397533−2.43E−03 2.38E−04 −9.84E−06

Here, K is a conic coefficient, and A4, A6, A8, A10, A12, A14 and A16are aspheric surface coefficients.

IH: Image Height

y=(x ² /R)/[1+{1−(k+1)(x ² /R ²)}^(1/2)]+A4x ⁴ +A6x ⁶ +A8x ⁸ +A10x ¹⁰+A12x ¹² +A14x ¹⁴ +A16x ¹⁶  (1)

For convenience, an aspheric surface of each lens surface uses theaspheric surfaces shown in the above formula (1). However, the presentdisclosure is not limited to the aspherical polynomials form shown inthe formula (1).

Table 3 and Table 4 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 10 according toEmbodiment 1 of the present disclosure. P1R1 and P1R2 represent theobject side surface and the image side surface of the first lens L1,P2R1 and P2R2 represent the object side surface and the image sidesurface of the second lens L2, P3R1 and P3R2 represent the object sidesurface and the image side surface of the third lens L3, P4R1 and P4R2represent the object side surface and the image side surface of thefourth lens L4, P5R1 and P5R2 represent the object side surface and theimage side surface of the fifth lens L5, and P6R1 and P6R2 represent theobject side surface and the image side surface of the sixth lens L6. Thedata in the column named “inflexion point position” refers to verticaldistances from inflexion points arranged on each lens surface to theoptic axis of the camera optical lens 10. The data in the column named“arrest point position” refers to vertical distances from arrest pointsarranged on each lens surface to the optic axis of the camera opticallens 10.

TABLE 3 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 0 0 0 P1R2 3 0.4650.575 0.745 P2R1 2 0.405 0.485 0 P2R2 0 0 0 0 P3R1 1 0.125 0 0 P3R2 10.095 0 0 P4R1 1 0.075 0 0 P4R2 2 0.155 1.095 0 P5R1 2 0.335 1.245 0P5R2 1 1.075 0 0 P6R1 2 1.125 1.985 0 P6R2 1 0.495 0 0

TABLE 4 Number of Arrest point arrest points position 1 P1R1 0 0 P1R2 10.965 P2R1 0 0 P2R2 0 0 P3R1 1 0.205 P3R2 1 0.145 P4R1 1 0.125 P4R2 10.265 P5R1 1 0.505 P5R2 0 0 P6R1 0 0 P6R2 1 1.165

FIG. 2 and FIG. 3 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435.8 nm, 486.1 nm, 546.1 nm, 587.6nm and 656.3 nm after passing the camera optical lens 10 according toEmbodiment 1. FIG. 4 illustrates a field curvature and a distortion oflight with a wavelength of 546.1 nm after passing the camera opticallens 10 according to Embodiment 1, in which a field curvature S is afield curvature in a sagittal direction and T is a field curvature in ameridian direction.

Table 13 shows various values of Embodiments 1, 2 and 3 and valuescorresponding to parameters which are specified in the above conditions.

As shown in Table 13, Embodiment 1 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.9858 mm. The image height of 1.0H is 3.126 mm. The FOV (fieldof view) is 78.97°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 2

Embodiment 2 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 5 and Table 6 show design data of a camera optical lens 20 inEmbodiment 2 of the present disclosure.

TABLE 5 R d nd vd S1 ∞ d0 = −0.360 R1 1.485 d1 = 0.590 nd1 1.5462 v155.95 R2 3.780 d2 = 0.070 R3 2.949 d3 = 0.228 nd2 1.6682 v2 20.40 R42.481 d4 = 0.338 R5 22.664 d5 = 0.329 nd3 1.5462 v3 55.95 R6 22.548 d6 =0.123 R7 27.581 d7 = 0.281 nd4 1.6682 v4 20.40 R8 10.990 d8 = 0.264 R914.374 d9 = 0.516 nd5 1.5462 v5 55.95 R10 −1.832 d10 =  0.297 R11 −8.130d11 =  0.677 nd6 1.5142 v6 56.26 R12 1.496 d12 =  0.350 R13 ∞ d13 = 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14 =  0.274

Table 6 shows aspherical surface data of each lens of the camera opticallens 20 in Embodiment 2 of the present disclosure.

TABLE 6 Conic coefficient Aspherical surface coefficients k A4 A6 A8 R12.14E−02 −0.007433443 0.047021701 −0.137561829 R2 −1.21E+01 −0.2234745980.427355696 −0.483082967 R3 −3.77E+00 −0.336255268 0.558694826−0.418065871 R4 −3.15E−01 −0.187200817 0.437466701 −0.774684002 R5−1.13E+03 −0.116260677 −0.065561534 0.273428086 R6 −1.01E+06−0.241577768 −0.229817658 1.19522481 R7 −5.55E+06 −0.450376750.126469428 0.152353075 R8 1.63E+01 −0.327907633 0.026511109 0.344828656R9 9.11E+01 −0.0130704 −0.150405617 −0.059835343 R10 −4.05E+00−0.018111425 −0.021023115 −0.095992201 R11 1.38E+01 −0.3043835670.134825139 0.003482849 R12 −4.68E+00 −0.18261824 0.117618934−0.050436094 Aspherical surface coefficients A10 A12 A14 A16 R10.27429502 −0.331729012 0.219090606 −0.06310275 R2 0.332605043−0.139700863 0.052518332 −0.024483924 R3 0.041407308 0.19246554−0.085297334 −0.014057738 R4 1.545519618 −2.181344516 1.756334179−0.542122292 R5 −0.947356895 1.489634754 −1.255407633 0.46077309 R6−2.446482698 2.440640555 −1.199097161 0.216160933 R7 0.538176469−1.900451081 1.8554115 −0.616497945 R8 −0.408809173 0.184177568−0.029468518 0.003477437 R9 0.333360148 −0.332050108 0.140172481−0.021610741 R10 0.149718293 −0.07719212 0.017425018 −0.001471183 R11−0.01515516 0.00414445 −0.000473552 2.06322E−05 R12 0.013975323−0.002432918 0.000237314 −9.79916E−06

Table 7 and Table 8 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 20 according toEmbodiment 2 of the present disclosure.

TABLE 7 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 0 0 0 P1R2 1 0.8350 0 P2R1 2 0.435 0.475 0 P2R2 0 0 0 0 P3R1 1 0.175 0 0 P3R2 1 0.045 0 0P4R1 1 0.025 0 0 P4R2 2 0.155 1.065 0 P5R1 3 0.335 1.245 1.455 P5R2 11.075 0 0 P6R1 2 1.135 1.875 0 P6R2 1 0.525 0 0

TABLE 8 Number of Arrest point Arrest point arrest points position 1position 2 P1R1 0 0 0 P1R2 0 0 0 P2R1 0 0 0 P2R2 0 0 0 P3R1 1 0.285 0P3R2 1 0.095 0 P4R1 1 0.065 0 P4R2 2 0.265 1.205 P5R1 1 0.515 0 P5R2 11.635 0 P6R1 0 0 0 P6R2 1 1.255 0

FIG. 6 and FIG. 7 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435.8 nm, 486.1 nm, 546.1 nm, 587.6nm and 656.3 nm after passing the camera optical lens 20 according toEmbodiment 2. FIG. 8 illustrates a field curvature and a distortion oflight with a wavelength of 546.1 nm after passing the camera opticallens 20 according to Embodiment 2.

As shown in Table 13, Embodiment 2 satisfies the above conditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.9789 mm. The image height of 1.0H is 3.126 mm. The FOV (fieldof view) is 79.22°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1 and involves symbolshaving the same meanings as Embodiment 1, and only differencestherebetween will be described in the following.

Table 9 and Table 10 show design data of a camera optical lens 30 inEmbodiment 3 of the present disclosure.

TABLE 9 R d nd vd S1 ∞ d0 = −0.163 R1 1.570 d1 = 0.507 nd1 1.5697 v137.71 R2 2.313 d2 = 0.070 R3 2.327 d3 = 0.231 nd2 1.6781 v2 19.39 R42.234 d4 = 0.243 R5 8.568 d5 = 0.328 nd3 1.5462 v3 55.95 R6 8.452 d6 =0.075 R7 6.212 d7 = 0.206 nd4 1.6682 v4 20.40 R8 10.518 d8 = 0.171 R910.741 d9 = 0.480 nd5 1.5462 v5 55.95 R10 −1.335 d10 =  0.553 R11 −7.634d11 =  0.391 nd6 1.5142 v6 56.26 R12 1.355 d12 =  0.350 R13 ∞ d13 = 0.210 ndg 1.5168 vg 64.17 R14 ∞ d14 =  0.164

Table 10 shows aspherical surface data of each lens of the cameraoptical lens 30 in Embodiment 3 of the present disclosure.

TABLE 10 Conic coefficient Aspherical surface coefficients k A4 A6 A8 R11.1731E−01 −0.001512904 0.036381152 −0.130359758 R2 −2.8688E+01−0.156077517 0.427739098 −0.584983256 R3 −7.5378E+00 −0.3539329380.50505847 −0.414498135 R4 −1.6578E+00 −0.19419232 0.509007537−0.777740054 R5 −2.4213E+01 −0.046744953 −0.061245339 0.294432758 R6−3.7934E+16 −0.226906704 −0.233201296 1.194619854 R7 −3.2050E+16−0.414908419 0.134506492 0.16148961 R8 4.7713E+01 −0.3059397770.023627872 0.342954417 R9 5.6356E+01 −0.014414814 −0.124449957−0.064792015 R10 −4.0061E+00 −0.013725491 −0.018058114 −0.089319201 R111.4422E+01 −0.29571815 0.135135058 0.003209606 R12 −5.6132E+00−0.174624246 0.116747531 −0.05003699 Aspherical surface coefficients A10A12 A14 A16 R1 0.288993021 −0.325698303 0.236795864 −0.068764897 R20.232729893 −0.087817147 0.188035462 0.128060837 R3 0.0011643860.088309477 −0.190868216 −0.149451416 R4 1.429443659 −2.2662300541.703709484 −0.594997393 R5 −0.870670616 1.521584313 −1.2996213140.370211399 R6 −2.438128515 2.440640555 −1.118019538 0.234839422 R70.577182984 −1.881748463 1.842243697 −0.590713562 R8 −0.4107088120.183192779 −0.035072125 0.005349211 R9 0.321638486 −0.3382936590.143330832 −0.020326596 R10 0.151219754 −0.077891107 0.017245896−0.001505865 R11 −0.015153607 4.15E−03 −4.64E−04 2.02E−05 R120.013981848 −2.44E−03 2.37E−04 −9.67E−06

Table 11 and table 12 show design data of inflexion points and arrestpoints of respective lens in the camera optical lens 30 according toEmbodiment 3 of the present disclosure.

TABLE 11 Number of Inflexion Inflexion Inflexion inflexion point pointpoint points position 1 position 2 position 3 P1R1 0 0 0 0 P1R2 2 0.5350.725 0 P2R1 1 0.365 0 0 P2R2 1 0.715 0 0 P3R1 1 0.415 0 0 P3R2 1 0.8550 0 P4R1 1 0.835 0 0 P4R2 1 0.165 0 0 P5R1 1 0.385 0 0 P5R2 1 0.965 0 0P6R1 1 1.115 0 0 P6R2 3 0.515 2.245 2.365

TABLE 12 Number of Arrest point arrest points position 1 P1R1 0 0 P1R2 00 P2R1 1 0.675 P2R2 0 0 P3R1 1 0.725 P3R2 0 0 P4R1 0 0 P4R2 1 0.285 P5R11 0.585 P5R2 0 0 P6R1 0 0 P6R2 1 1.395

FIG. 10 and FIG. 11 illustrate a longitudinal aberration and a lateralcolor of light with wavelengths of 435.8 nm, 486.1 nm, 546.1 nm, 587.6nm and 656.3 nm after passing the camera optical lens 30 according toEmbodiment 3. FIG. 12 illustrates field curvature and distortion oflight with a wavelength of 546.1 nm after passing the camera opticallens 30 according to Embodiment 3.

Table 13 in the following lists values corresponding to the respectiveconditions in this embodiment in order to satisfy the above conditions.The camera optical lens according to this embodiment satisfies the aboveconditions.

In this embodiment, the entrance pupil diameter of the camera opticallens is 1.4592 mm. The image height of 1.0H is 2.83 mm. The FOV (fieldof view) is 87.60°. Thus, the camera optical lens has a wide-angle andis ultra-thin. Its on-axis and off-axis chromatic aberrations are fullycorrected, thereby achieving excellent optical characteristics.

TABLE 13 Parameters Embodiment Embodiment Embodiment and conditions 1 23 f  3.714 3.700 2.802 f1 4.118 4.106 6.880 f2 −30.497 −29.102−3.394E+07 f3 −3.067E+06 −2.757E+07 −1.176E+06 f4 −25.477 −27.528 22.283f5 2.885 3.009 2.205 f6 −2.382 −2.399 −2.205  f12 4.460 4.473 6.604 FNO1.87 1.87 1.92 f1/f 1.11 1.11 2.46 R11/d11 −19.98 −12.01 −19.52

It can be appreciated by one having ordinary skill in the art that thedescription above is only embodiments of the present disclosure. Inpractice, one having ordinary skill in the art can make variousmodifications to these embodiments in forms and details withoutdeparting from the spirit and scope of the present disclosure.

What is claimed is:
 1. A camera optical lens, comprising, from an objectside to an image side: a first lens; a second lens having a negativerefractive power; a third lens having a negative refractive power; afourth lens; a fifth lens; and a sixth lens, wherein the camera opticallens satisfies following conditions:1.10≤f1/f≤3.00; and−20.00≤R11/d11≤−11.00, where f denotes a focal length of the cameraoptical lens; f1 denotes a focal length of the first lens; R11 denotes acurvature radius of an object side surface of the sixth lens; and d11denotes an on-axis thickness of the sixth lens.
 2. The camera opticallens as described in claim 1, further satisfying following conditions:1.10≤f1/f≤2.73; and−20≤R11/d11≤−11.50.
 3. The camera optical lens as described in claim 1,wherein the first lens has a positive refractive power, and comprises anobject side surface being convex in a paraxial region and an image sidesurface being concave in the paraxial region, and the camera opticallens further satisfies following conditions:−10.46≤(R1+R2)/(R1−R2)≤−1.53; and0.06≤d1/TTL≤0.20, where R1 denotes a curvature radius of the object sidesurface of the first lens; R2 denotes a curvature radius of the imageside surface of the first lens; d1 denotes an on-axis thickness of thefirst lens; and TTL denotes a total optical length from the object sidesurface of the first lens to an image plane of the camera optical lensalong an optic axis.
 4. The camera optical lens as described in claim 3,further satisfying following conditions:−6.54≤(R1+R2)/(R1−R2)≤−1.91; and0.10≤d1/TTL≤0.16.
 5. The camera optical lens as described in claim 1,wherein the second lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens further satisfies followingconditions:−2.42 E+07≤f2/f≤−5.24;5.81≤(R3+R4)/(R3−R4)≤73.42; and0.03≤d3/TTL≤0.09, where f2 denotes a focal length of the second lens; R3denotes a curvature radius of the object side surface of the secondlens; R4 denotes a curvature radius of the image side surface of thesecond lens; d3 denotes an on-axis thickness of the second lens; and TTLdenotes a total optical length from an object side surface of the firstlens to an image plane of the camera optical lens along an optic axis.6. The camera optical lens as described in claim 5, further satisfyingfollowing conditions:−1.51E+07≤f2/f≤−6.55;9.29≤(R3+R4)/(R3−R4)≤58.73; and0.04≤d3/TTL≤0.07.
 7. The camera optical lens as described in claim 1,wherein the third lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens further satisfies followingconditions:−1.49 E+07≤f3/f≤−2.80E+05;73.39≤(R5+R6)/(R5−R6)≤956.06; and0.04≤d5/TTL≤0.12, where f3 denotes a focal length of the third lens; R5denotes a curvature radius of the object side surface of the third lens;R6 denotes a curvature radius of the image side surface of the thirdlens; d5 denotes an on-axis thickness of the third lens; and TTL denotesa total optical length from an object side surface of the first lens toan image plane of the camera optical lens along an optic axis.
 8. Thecamera optical lens as described in claim 7, further satisfyingfollowing conditions:−9.31E+06≤f3/f≤−3.50E+05;117.42≤(R5+R6)/(R5−R6)≤764.85; and0.06≤d5/TTL≤0.10.
 9. The camera optical lens as described in claim 1,wherein the fourth lens comprises an object side surface being convex ina paraxial region and an image side surface being concave in theparaxial region, and the camera optical lens further satisfies followingconditions:−14.88≤f4/f≤11.93;−7.77≤(R7+R8)/(R7−R8)≤3.49; and0.03≤d7/TTL≤0.09, where f4 denotes a focal length of the fourth lens; R7denotes a curvature radius of the object side surface of the fourthlens; R8 denotes a curvature radius of the image side surface of thefourth lens; d7 denotes an on-axis thickness of the fourth lens; and TTLdenotes a total optical length from an object side surface of the firstlens to an image plane of the camera optical lens along an optic axis.10. The camera optical lens as described in claim 9, further satisfyingfollowing conditions:−9.30≤f4/f≤9.54;−4.86≤(R7+R8)/(R7−R8)≤2.79; and0.04≤d7/TTL≤0.07.
 11. The camera optical lens as described in claim 1,wherein the fifth lens has a positive refractive power, and comprises anobject side surface being convex in a paraxial region and an image sidesurface being convex in the paraxial region, and the camera optical lensfurther satisfies following conditions:0.39≤f5/f≤1.22;0.39≤(R9+R10)/(R9−R10)≤1.17; and0.05≤d9/TTL≤0.18, where f5 denotes a focal length of the fifth lens; R9denotes a curvature radius of the object side surface of the fifth lens;and R10 denotes a curvature radius of the image side surface of thefifth lens; and d9 denotes an on-axis thickness of the fifth lens; andTTL denotes a total optical length from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis.
 12. The camera optical lens as described in claim 11, furthersatisfying following conditions:0.62≤f5/f≤0.98;0.62≤(R9+R10)/(R9−R10)≤0.94; and0.09≤d9/TTL≤0.14.
 13. The camera optical lens as described in claim 1,wherein the sixth lens has a negative refractive power, the object sidesurface of the sixth lens is concave in a paraxial region, and an imageside surface of the sixth lens is concave in the paraxial region, andthe camera optical lens further satisfies following conditions:−1.57≤f6/f≤−0.43;0.34≤(R11+R12)/(R11−R12)≤1.15; and0.05≤d11/TTL≤0.22, where f6 denotes a focal length of the sixth lens;R12 denotes a curvature radius of the image side surface of the sixthlens; and TTL denotes a total optical length from an object side surfaceof the first lens to an image plane of the camera optical lens along anoptic axis.
 14. The camera optical lens as described in claim 13,further satisfying following conditions:−0.98≤f6/f≤−0.53;0.55≤(R11+R12)/(R11−R12)≤0.92; and0.08≤d11/TTL≤0.18.
 15. The camera optical lens as described in claim 1,further satisfying a following condition:0.60≤f12/f≤3.54, where f12 denotes a combined focal length of the firstlens and the second lens.
 16. The camera optical lens as described inclaim 15, further satisfying a following condition:0.96≤f12/f≤2.83.
 17. The camera optical lens as described in claim 1,wherein a total optical length TTL from an object side surface of thefirst lens to an image plane of the camera optical lens along an opticaxis is smaller than or equal to 5.00 mm.
 18. The camera optical lens asdescribed in claim 17, wherein the total optical length TTL of thecamera optical lens is smaller than or equal to 4.77 mm.
 19. The cameraoptical lens as described in claim 1, wherein an F number of the cameraoptical lens is smaller than or equal to 1.98.
 20. The camera opticallens as described in claim 19, wherein the F number of the cameraoptical lens is smaller than or equal to 1.94.